Chapter 4 Channel Power Operation
Setting up the trace
9102 Handheld Spectrum Analyzer Software version 5.31
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Adding trace B to trace
A
If you have used two different trace views, you can also show the sum
of trace A and trace B by adding the two traces as follows:
1 In the Trace menu select the softkey
Trace Function followed by the
softkey
Add A + B A.
2 Select
on to add B to trace A. On the left-hand side of the result
area the term “Add“ will now be displayed to indicate that a mathe-
matical function is being performed. The result is displayed in trace
A.
Defining the number of
measurements for
averaging
When the trace mode is set to averaging, it may be useful to adjust the
number of measurements over which the 9102 averages the results.
The average count value that can be defined in the Trace menus
applies to both traces alike.
The 9102 uses a recursive algorithm in which a new result is added to
the older averages with a weighting factor; the description below indi-
cates how to change this weighting factor.
1 Enter the Trace menu (select
Trace > Trace A or Trace B from the
main menu).
2 Push the
Average Count softkey.
The Average input field opens.
3 Enter the number of measurements over which to average the
results, in the range from 2 to 128.
4Press E
NTER.
Selecting the detection
method
In channel power mode, the detection method is set to Sample by
default. If the 9132 RMS Detector Option is installed and activated on
your 9102, the root mean square detector showing the RMS-effective
level of the measured signal is also available. In order to set the detec-
tion method to RMS proceed as follows:
1 From the main menu, select
Trace > Detect.
2 Select the RMS from the Detector section of the vertical softkeys.
The selected detection method is indicated at the left-hand side of
the display.
NOTE
If the 9132 RMS Detector Option is not installed on your 9102, the
RMS detector is greyed out.
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